Michael D. Arnett made the plea during a court appearance Monday. He admitted that investigators found child pornography on his computer during a search of his home last May.

Investigators said one of the images was a naked 2-year-old boy in a roasting pan that had been placed inside an oven.

Police said Arnett photographed three boys at his Roeland Park home, the 2-year-old from the roasting pan photo and boys who were 11 and 8 years old.

Investigators said Arnett met the children while driving for Kaw Valley Health Systems, a nonprofit corporation that provides medical care and social services for children.Prosecutors said Arnett drove the children to family visitations, counseling and other appointments.

Arnett had been named as part of a larger investigation into child pornography production and sharing. Investigators said they found graphic online chats between several men, including Arnett, that included talks of cooking and eating children. Arnett said the discussions were fantasies and prosecutors never found evidence of actual cannibalism.

Arnett faces a minimum of 15 years in federal prison. He's scheduled to be sentenced in May.